CONTENTS
VOlUME 70 I nUMBEr 5 I MAY 2014
2
From SPE
A new www.4spe.org-with new Opportunities for networking
Industry News ................................50
COVER STORY
6
12
18
DEPARTMENTS
Injection Molding's Wild Side: Multi-Process Parts
By Jan H. Schut
Multi-shot molding is morphing into hybrid, multiple-process molding
Compounding: Efficient Equipment, Lean Trends
By Jennifer Markarian
new tech allows faster, more efficient, and even safer
compounding extrusion
Filtration: A Crucial Tool for Plastics Processors
By Mike Verespej
the last line of defense in processing: screening out resin
contaminants
Industry Patents ............................56
By Dr. Roger Corneliussen
Energy-Saving Tip ..........................58
By Dr. Robin Kent
Upcoming Industry Events ..........62
Market Place ..................................64
Editorial Index ................................66
Advertiser Index ............................68
GLOBAL LOOK
How Some Clever Engineering Makes Millions of Lives Better
By American Chemistry Council
three examples of life-saving uses of modern plastic products
32
A "Game-Changing" C18 Diacid for the Plastics Industry?
By Allyson Beuhler
new technology for making diacid building-blocks creates novel
polymer options
36
Process Engineering for Recycled Polymers:
Life-Cycle Assessment
By Donald G. Baird and Dimitris I. Collias
lcA can indicate when recycling is efficient (and when it's not)
40
Using One-Sided Constraints to Improve Prediction of Core
Shift During Mold-Filling Simulation
By Alexander Bakharev, Zhiliang Fan, and David Astbury
connecting theory with practice can predict core deformation
during injection molding
Plastics Engineering
MAY 2014
#
#
28
About the cover:
A production cell for a two-component
cowl uses KraussMaffei's spinForm
injection molding system with three
injection units, plus four industrial
robots and its rimstar PUr
mixing/metering machine (original
image courtesy of KraussMaffei).
"""
I """
I
24
Green Cultivation with Biodegradable Plastic Mulch
From China Plastic & Rubber Journal
Biodegradable agricultural films offer special advantages over
conventional films
I
INSIDE SPI
46
!
I
#
!
I
I
news about the state of the plastics industry and more,
from sPi: the Plastics industry trade Association
!
www.4spe.org
www.plasticsengineering.org | www.4spe.org | MAY 2014 | PlAstics EnginEEring |
1
http://www.4spe.orghttp://www.4spe.orghttp://www.plasticsengineering.orghttp://www.4spe.org
Plastics Engineering - May 2014
Table of Contents for the Digital Edition of Plastics Engineering - May 2014